(19)
(11) EP 1 483 227 A1

(12)

(43) Date of publication:
08.12.2004 Bulletin 2004/50

(21) Application number: 03743467.7

(22) Date of filing: 24.02.2003
(51) International Patent Classification (IPC)7C07C 45/85, C07C 45/81, C07C 47/575, C07C 251/16
(86) International application number:
PCT/IB2003/000783
(87) International publication number:
WO 2003/074462 (12.09.2003 Gazette 2003/37)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 06.03.2002 US 361931 P

(71) Applicant: Pfizer Products Inc.
Groton,Connecticut 06340 (US)

(72) Inventors:
  • WATSON, Timothy, James, Norman
    Groton, CT 06340 (US)
  • VETELINO, Michael, Girard
    Groton, CT 06340 (US)
  • ARPIN, Patrice
    Quebec J3R 4H8 (CA)

(74) Representative: Dekker, Henrike Cornelie Christine et al
PFIZER PGRDEuropean Pharma Patent Dept.23/25 Avenue du Docteur Lannelongue
75668 Paris Cedex 14
75668 Paris Cedex 14 (FR)

   


(54) THE PURIFICATION OF 2-METHOXY-5-TRIFLUOROMETHOXYBENZALDEHYDE